Has anyone ever replaced a complete rear differential on 3L X Type with a low mileage salvage one?

 

Yes quite a few members here have. Follow this link to the "how to" section and at the very bottom you can download the complete shop manual in PDF format. https://www.jaguarforums.com/forum/x...essories-5915/
You will need either a trolley jack to lower the rear sub frame or a lift to raise the car off of the sub frame.

 

Thank you!
I downloaded the Workshop Manual suggested.